The PKD protein qilin undergoes intraflagellar transport Guangshuo Ou, Hongmin Qin, Joel L. Rosenbaum, J.M. Scholey  Current Biology  Volume 15, Issue 11, Pages R410-R411 (June 2005) DOI: 10.1016/j.cub.2005.05.044 Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 1 The qilin homolog, DYF-3, is an essential component of the IFT machinery that builds sensory cilia. The dyf-3 (m185) mutant has truncated chemosensory cilia and displays no detectable IFT. (A) Wild-type axonemes are 7.5 μm long, containing a 1μm long basal body, the transition zone, a 4μm middle segment, and a 2.5 μm distal segment. Arrowheads show the middle–distal segment junctions. Fluorescence micrographs show the distribution of IFT particles (OSM-6::GFP) along the wild-type sensory cilia. (B) The dyf-3 mutant loses its distal segments and has only a truncated middle segment and, moreover, no IFT can be detected in the remaining middle segment. (C) Motility of DYF-3::GFP within sensory cilia. Left panel shows fluorescence micrograph of sensory cilia. Right panels are kymographs with corresponding cartoons showing the lines representing selected DYF-3 particle trajectories along the middle segments (M, M’) and the distal segment (D, D’). Kymographs show that motility along the distal segment is faster than along middle segments. Bar = 5 μm. Current Biology 2005 15, R410-R411DOI: (10.1016/j.cub.2005.05.044) Copyright © 2005 Elsevier Ltd Terms and Conditions